Table 1.
Maximum level of education attained by study participants who completed the questionnaire, by study site.
Table 2.
Distribution of absolute and relative frequencies of correct answers related to the knowledge of participants about information contained in the informed consent form.
Table 3.
Knowledge index according to study site.
Table 4.
Comparison of the mean Knowledge Index (KI) between study sites.
Table 5.
Absolute and relative frequencies of responses concerning participants’ attitudes towards the clinical trial.
Table 6.
Participants’ responses regarding attitudes about participating in the clinical trial, according to the likert scale.
Table 7.
Distribution of absolute and relative frequencies regarding the study subjects’ reasons for participating in the clinical trial.